Famity—EVANIIDA. 129 
Species 1—AULACUS NOBILIS. 
(Westw. Trans. Ent. Soc. Lond. 1868, part iv. December, p. 329.) 
Pirate XXIV, Fie. 4. 
Niger, nitidus: mesonoto valde gibboso, retuso, rugoso, et antice tuberculis duobus conicis porrectis armato, 
supra rufo-fulvo ; alis fuscis, violaceo-micantibus, stigmate nigro, omnibus macula trigona, paullo ante medium, 
fasciaque lata substigmaticali, hyalinis; abdomine brevi clavato; oviductu abdomine paullo longiori, valvulis 
nigris. 2. 
Long. corp. lin. 6; expans. alar. lin. 11. 
Habitat ; Amazonia (Bates). In Mus. Hopeiano Oxonie. 
Spectres 2—AULACUS FORMOSUS. 
(Westw. Trans. Ent. Soc. loc. cit. p. 330.) 
Puate XXIV, Fic. 5. 
Elongatus, lete flayus, nigro variegatus: alis subhyalinis, stigmate nigro, nubilaque apicali anticarum 
infumatis; capitis vertice nigro, lineis (vel punctis) duabus flavis; mesonoto transverse striatulo, macula trigona 
antica, alterisque duabus dorsalibus, scutello et metanoto maculis parvis nigris notatis ; abdomine flavo, basi et 
fasciis nigris; pedibus flavis, posticorum duorum trochanteribus, basi et apice tibiarum, tarsisque nigris ; ovi- 
ductis valvulis nigris. J et ?. 
Long. corp. ¢ lin. 6, ? lin. 7; expans. alar. antic. d lin, 12, ? lin. 14. 
Habitat; Australia Australori, Melbourne (Bakewell). In Mus. Hopeiano Oxoniz (olim nostro) et 
Britann. (cum nomine MS. Smithiano supra usitato inscriptus). 
Sus-Grnus—AULACINUS. 
AULACUS (AULACINUS) MCERENS. 
(Westw. Trans. Ent. Soc. loe. cit. p. 331.) 
PiatE XXIV, Fre. 6. 
Brevis, subopacus, niger: capite subgloboso, antennis brevibus, fulvis, articulis 2 basalibus et 2 apicalibus 
nigricantibus ; thorace brevi-ovato, antice subretuso, striatulo; alis subhyalinis, stigmate et venis nigris, 
cellulis 4 submarginalibus distinctis, secunda late trigona, apice supra truncato, tertia subquadrata, vena cel- 
lulam secundam claudente cum vena secunda recurrente continua; venis alarum posticarum obsoletis ; pedibus 
nigris, tibiis (nisi apice posticarum) tarsisque brunneis; abdomine brevi, clavato; oviductu abdomine brevior' ; 
valvulis nigris. ?. 
Long. corp. lin. 53; expans. alar. antic. lin. 84. 
Habitat ; Adelaide, Australia. In Mus. Hopeiano Oxonie. 
The variation in the veins of the wings has rendered it necessary to propose a separate subgenus for 
this species. 
Genera duo incerte sedis. 
Grnus—NOMADINA. 
(Westw. Trans. Ent. Soc. Lond. 1868, part iv. December, p. 328.) 
Genus novum, e sectione Terebrantium; Trigonalydi forsan proximum, Nomadam (Apidarum) quodam- 
modo simulans. 
Corpus breve robustum; caput transversum, lobo transverso antico, in quo insident antenna, thorace 
breviores, sat crass, 16-articulate (fig. 7c), articulo primo brevi; ocelli 3, parvi; mandibule (fig. 7 a) lati, 
subquadrate, fere plane, 4-dentatie; relique oris partes fere obsolete (fig. 74); palpi labiales brevissimi, 
subconici ; thorax ovatus, collari supra inconspicuo ; pedes breves, robusti, simplices, unguibus bifidis (fig. 7 d, 
s 
